Gaya APA

Duplay, D. (2004). Physicians Desk Reference : For non Prescription Drugs and Dietary Supplements Vol.25 (Edisi 25). : Thomson PDR.

Gaya MLA

Duplay, David. "Physicians Desk Reference : For non Prescription Drugs and Dietary Supplements Vol.25". Edisi 25 : Thomson PDR, 2004. Text.